Loom feeler-motion.



10 I' trolled and called by 'a Contact feeler or -IEIRBYIQ KIVIBALL, OF BRONXV1LLE,'NEW YORK, ASSIGNOR, BY. MESNE ASSIGNMENTS,

T DRAPER CORPORATION, v015i" HOPEDALE, MASSACHUSETTS, .A CORPORATION 0F MAINE.

Loon: rnnnnnfino'rron.

Specification of Letters Patent. l. Pat'gntgd 3131-., 25

Application filed February 11,1918. Serial 110.216,639.

inents in Loom Feeler-Motions.

The invention is specifically an iinpiovement in side-slipping feelerse that is to Vsay lin weft depletion indicators wherein a changein the operation oi the loom isy con-v nger Which-feels the weftin the shuttle on the beat-up oithe lay and slips sidewise :thereon or on itspartially denuded bobbin or carrier, When. the weft is nearly exhausted andthereby stopsthe loom or replenishes the weft Without stopping it. The improvement consists in a combination of the principal. elements of the side-slipping feeler system so organized as to reduce or minimize the mass, and hence the inertia, otthose l feeler parts which are moved by the Weiten each normal and also on each call-changing action and so organized as to permit the their weft feeling Aposition and to avoid -1 yieavy or'sudden strains upon the-members which are directly controlled by the vary- .ainechanism so constructed,

ing conditions of the weft, thereby producing a feeler mechanism which is veryF sensitive and also very durableand which can be set to work with reliable uniformity on a close margin of depletion. By reason of thc lightness and delicacy of feeling Contact otit is incapable of crushing tine wetts or ,of abinolingl the surface oi` enameled hobbins' and various other advantages are also incident `upon the same conditions, as well as upon other incidental and collateral @Features of the herein disclosed structure which Will be made ap.

parent in connection With the'following descriptiou and the drawings wherein- Figure 1 is an elevation of the vfeeler mechanism;

Fig. 2 a top plan;

Fig. 3 a side elevation of a portion of the actuating train including the dog;

Fig. 4 a section through the latch and catch;

Fig. 5 a side elevation thereof in a di'erentjfposition; and

Fic'. 6 an axial section through the pivot of the fee-ler carrier.

. manner.

use of very4 light spring pressures for re- 'viously be reduced to a negligib ized in form the sake .oiightness The feeler mechanism will be lunderstood 'to be mounted as usual on a supporting bracket l in position to be' engaged bythe Wett in the shuttle on the beat-up stroke o1 the lay and to bring about weft replenishment or looin stoppage through the control of some'suitable train of mechanism represented in the present case by the usual crank arm 2, on the weft reple-nisliing starting shatt7 carrying a pivoted dog 3 adapted to be struck by the weft-hammer t but normally counterbalanced on itsv pit/ot so as to be out of'the path of4 said weft-hammer. This dog is governed 'by' a lever 5 herein termed its controller Which is subject to the tension of a spring 6 4or other orce'urging it in the direction to swing the dog into interposition between the said arm and weft hammer and therebycause the actuation oil the arni by the Wett hammer l in the usual The controller 5'swings the dog in the manner just described Aon the attainment of a predetermined degree of depletion oi the weft Whichis determined andy indicated by the side-slipping of the contact tip of the feeler finger and for this purposethe said controller 5 `is provided with a latch 7 engaged and held out of action upon the dog by a complementary catch 8 formed on the carrier 9 upon which the feeler finger l() is mounted. The carrier 9 is ivotally'm'ounted on a'pivot pin 1l upstan ing from a fixed bracket l2 said pin being substantially perpendicular to the normally engaging faces of the latch `'and catch and said engaging faces being substantially radialto the fulcruni axis of controller 5 so thatthe turn-` one face against the other. Bygiving .the r said faces a slight inclination with reference to the direction of the pressure otone upon the other this resistance 'gto turnino' may oblne amount or, the inclination may be sufficient to exert a slight cumming action on the carrier in the direction to disengage it 5. In any event',I the swinging movement of the carrier'is not appreciably restrained by reason of its engagement 'with the confrom the controller troller notwithstanding that the latter may;v

be heavy and the erful. The carrier is preferabl skeletons spring 6 relatively lpoivv-v gthv` shank tovary thv spring tvnsion.

-to swing thv. varrivr on itspilvotalul rvtain' it 'arrivr pivot 11 st,

an ahutiutiit lint `lT u'hitgh is atlj'ustah'lv on l lt will hv apparvnt that othvr tingvr gtlul sp'riurgl trrangvlnvnts will Liiv thv sana vtl'vvt an'tl sion vanliv sinii'larly slight :nul thv vontavt to rvst rain :nul rvstorv thv varrvr :nul i talso atljustahlv so that-tit van hv svt to, provulv a vountvr-t'orvv oll approprlatv'iu-ingiul.slipsa position in thv i'var 'nt' thv innvrtright 130 hand) end of the controller. As the weft hammer completes its forward movement thiscain 20, encounters the inner end of 'the 'controller thereby lifting it agiinstthe pulle, ofthe spring 6', andhen'e'lowciiing the latch :end'ol' the controller. As shown in Figs'.l 4, `and,y thevback faces of both the/,catch 7, and {tliei latch 8, are inclined, that is to say the faces-Which are opposite thel normally en- 10,gagingfsces of the catch and latch.` ln the 1 position shown in Fig. l?, these inclined back 'Qt-faces of the catch and latch are in engage! ment with each other'. Consequently,'ivlien -thelatch 7, is depressed vthrough the action 15' oftheweftliaiinner, Iits inclined hack face llinovesV hackwardly freeing the dog 3, the dog.

Y and the afin 2, are moved to the rear in the lfrciistoiiiairy manner by the usual spring act-- i'ipon the 'starting' shaft,and 'the cani 20,

on tlie'dog-passes to the 'i'eai of the controller, so that the dog 8, is returned to its normal :ihill line position shown inv Fig. 3, owing; 'to the greater Weight of its iront vend, and

"5 the'spring 6, Iacting upon the controller- 5,

. Innings theliippei engaging face of the latch )in vContact With the 'under' engaging tace .fof the catch .8,iis shown in lFig. e. Accord- "ll'li'igly, thelfeeler carrier and controller ie-r .suine their normal'` engaging" and stat iona'ry ,K'EtLis' preferred toppi'ovideiiiclined hack j `faces' onhotli latch and catch shown lint oli'- 4Q'ionsly'the desired "resetting Aeffect can lie `p`roduced byiiii inclined face on one, oi' the @otheiv-'or otherwise associated therewith for ""Ltli'e .purposes stated. I

' l ""Will'be observed that when released by and 'remains displaced until the dog:- .lias operated the actuating arni Qbecaiisc, it can .on y loe reset as theresultof such operation Idiffereiil; ways Awhile still preserving the nllioveil'escifibed sinipl'e relation and alsotli at vii-rioiis other` mod iications,I substitutions,

additionsfand 'siibtia'c'tioiis and otheii changes jfromtl'je'forni shove described may he res fsoiftedtolwitht it departing ifi-oni tlie-piine1 feeleif carrier the eonti'ollei is latched' a ,consequently there vcan be no failure to' ciple oi' 'the invention as identified in the following claims.

l claiml. A'looin feelei' motion having, in combi: A

l"' carrierv 9, having guides i6, 16, oliset tonne nation, a normally stationary pivoted e'eler side of itsexis and-a catch 8, having its hack' face inclined; a stop il,A a light spring-13,

normally holding the feelei carrier stationary against the stop; el feeler linger 10, slid-` ingly mounted in the guides of the vfeelei" carrier in a line ol'set'from tlieaxis of 'the feeler carrier; a spring l5, pressing the feeler infer rear vardlv said sirin bein stiiieivs 7 @D Y than the spring L5; a controller o, having a latch 7, normally below said catch, said latch having its back face inclinedand adaptedr when said 'carrier swings to engage tliebacliface of the catch to enable the carrier' to `be rrestored toiioi'inalposition; a spring 6, act

infrupon the controller tonorinally maintain -Y its latch in engagement with said catch and to niove the controlleil when the catclr'ai'idv ufl l` fion l th l yt! `aci are ciseiwagec iy e sving o I .ic

carrier; and restoring iiieans acting'upon the controller in opposition tothe spring C, to nieve the controller latch below tlie'catch.

A looin feeler motion having, in coinliination, a normally stationary pivoted ieelei carrier, having a catch with its hack face inclined, a spring normally holding the teelei:` carrier stationary, a controller having a latch with its back face inclined,lsaid latcli normally engaging `said catch, a spring acting upon the controller to normally maintaiii its latch in :engagement with the catch and serviiigito niove the controller to bring the hack 'faces of the latch and catch into register vwhen the cari-ier swings, and restoring inea'ns acting upon the controller in opposition lto its spring to move the latch into .normal` relation to the catch. I

3. A. looni feeler motion having, in coinbination, a normally stationair-y feelci can' i'iei pivotcd to a' fixed support and mov ing the fecler carrier stationary aga-inst the stop, a i'eel'ei' finger slidingly mounted in the guides of the feeler carrier in a line Oifset from the axisof the feelei' carrier, :i

brought into action when released by theiio "able onlyy when the )veit is nearly exhausted and having guides olisetto one side of its axis, o stop, a light springA normally hold-V spring pressing the fceler finger rearwardly, i said springbeingA stiffer than the carriei-y swing ot' the.carrieiiagainst the oppositionl of its .holding springi 4,-. A loom feelei1 motion having, in conilii'nati'on,` a normally' sta/tionai'y feelei can" iier pivoted to a ixed'siipport and movable only when the weft is nearly exhausted and a light spring noiinallyffilioldingthe feelei` carrier .stationary/a feeljer-.iiiiger mounted on the feeler- Carriertofnlove thereon in a4 path' offset fron'lthe axis ot'the teeler vir l rier, a `spi-nnb' pressnig the feeler finger rearwardly, and controller vwhich is brought'4 into,.-:ut'|on 4when released by the s wingxot a the carrier against the. opposition of its h0ld- 'ing spring. v

A loom -t'eele-r'lnotion having,- in "co'nlf-v binati-on, a normally stationary feeler carrier piroted 'to a fixed support and vmoving only when the 'weft isnearly exhausted, and

` a feeler finger mounted on said earrer to 'more thereon in -a path offset, from the a,xis, of thesaid barrier, said earrierbeing swung by 'the impart of a. depleted eftgrarrier lupon the feeler finger as saidfinge" Slips stlewise. al'onlg'r said. riet-carrier..

v(3.' A looin t'eele'i' inot'ion'lnlving, in conibna-timi. a" normally stationary feeler carrjer niounttal .on-a stationary support and llloving only when the weftis nearly eX-v ,liausted and having a `catch, a spring vnorina-ily ,holding thefeeler carrier Stationary,

.the feele1' -car rier; i In testimony whereof, I vhave signed' this and a controller supported independently of 1; -A loom feeler niotionfliaving, in combinationkafnormally stationary eeler carrier mounted on a stationary support and 'moving only when the weft is nearly ex-4 .A hausted, a, controller normally engaging said arri'er and restrained from movement thereby, said` feeler carrier on the depletion of weft moving relatively to and independently lof said controller thereby disengagng and releasing saideontroller, and means for moving the controllerv when so released by specification.

HARRY IQMBALL. 

